ADS8319 Datasheet, PDF (1/30 Pages) Texas Instruments – 16-BIT, 500-KSPS, SERIAL INTERFACE MICROPOWER, MINIATURE, SAR ANALOG-TO-DIGITAL CONVERTER

ADS8319
www.ti.com ........................................................................................................................................................................................................ SLAS600 – MAY 2008
16-BIT, 500-KSPS, SERIAL INTERFACE MICROPOWER, MINIATURE,
SAR ANALOG-TO-DIGITAL CONVERTER
FEATURES
1
• 500-kHz Sample Rate
• 16-Bit Resolution
• Zero Latency at Full Speed
• Unipolar, Single-Ended Input, Range: 0 V to
V_ref
• SPI Compatible Serial Interface with Daisy
Chain Option
• Excellent Performance:
– 93.6 dB SNR Typ at 10-kHz I/P
– –106 dB THD Typ at 10-kHz I/P
– ±1.5 LSB Max INL
– ±1.0 LSB Max DNL
• Low Power Dissipation: 18 mW Typ at 500
KSPS
• Power Scales Linearly with Speed: 3.6 mW/100
KSPS
• Power Dissipation During Power-Down State:
0.25 µW Typ
• 10-Pin MSOP and SON Packages
APPLICATIONS
• Battery Powered Equipments
• Data Acquisition Systems
• Instrumentation and Process Control
• Medical Electronics
• Optical Networking
DESCRIPTION
The ADS8319 is a 16-bit, 500-KSPS analog-to-digital
converter. It operates with a 2.25-V to 5.5-V external
reference. The device includes a capacitor based,
SAR A/D converter with inherent sample and hold.
The device includes a 50-MHz SPI compatible serial
interface. The interface is designed to support daisy
chaining or cascading of multiple devices. Also a
Busy Indicator makes it easy to synchronize with the
digital host.
The ADS8319 unipolar single-ended input range
supports an input swing of 0 V to +V_ref.
Device operation is optimized for very low power
operation, and the power consumption directly scales
with speed. This feature makes it attractive for lower
speed applications.
It is available in 10-pin MSOP and SON packages.
+VA
+VBD
IN+
IN-
REFIN
SAR
CDAC
COMP
ADS8319
GND
O/P
Drive
I/P
Shift
Reg
Conversion and I/O
Control Logic
CONVST
SDO
SDI
SCLK
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008, Texas Instruments Incorporated